Python wait then break

Question

I am trying to wait for user input. If no user input is provided then break. I found this code useful, but the problem is that it will continue if there was no user input provided. Is there something else I can add to make it break instead of continue?

The use case

I am sending a test email to myself. if the test email looks good I will send the email to the targeted people. I have two functions, one for the test and one for the real email. and between them, I need a break in case the test email has a problem.

import select
import sys

print('Press enter to continue.', end='', flush=True)
r, w, x = select.select([sys.stdin], [], [], 600)
print("the code will keep going after 600 seconds pass")

Does this answer your question? [Keyboard input with timeout?](https://stackoverflow.com/questions/1335507/keyboard-input-with-timeout) — PM 77-1, Mar 02 '22 at 21:19
Where do you want to break from ? Will this be inside a loop ? — Stijn B, Mar 02 '22 at 21:31
I am sending a test email to myself. if the test email looks good I will send the email to the targeted people. I have two functions, one for the test and one for the real email. and between them, I need a break in case the test email has a problem, — engzaz, Mar 02 '22 at 21:43

score 0 · Answer 1 · answered Mar 02 '22 at 21:24

0

I would use input

input('Press enter to continue.')

answered Mar 02 '22 at 21:24

rowBee

61
1
5

That is what I am planning to do if select/sys doesn't provide a way to break the script if the user didn't click on enter – engzaz Mar 02 '22 at 21:33

score 0 · Answer 2 · answered Mar 02 '22 at 21:38

0

based on python documentation I don't see an option to break after the time out [https://docs.python.org/3/library/select.html][1]

select.select(rlist, wlist, xlist[, timeout])

answered Mar 02 '22 at 21:38

engzaz

76
5

score 0 · Accepted Answer · answered Mar 02 '22 at 21:49

In answer to your comment (wish is in my opinion way more understandable than the initial question) :

I am sending a test email to myself. if the test email looks good I will send the email to the targeted people. I have two functions, one for the test and one for the real email. and between them, I need a break in case the test email has a problem

import sys

send_mail_to_me()

answer = input("Send to everybody? Y/n")
if answer == "Y":
    send_mail_to_everybody()
else:
    sys.exit()

sys.exit() will terminate the Python script. See this for detailed information

Python wait then break

3 Answers3